ML20035E077
| ML20035E077 | |
| Person / Time | |
|---|---|
| Issue date: | 07/07/1992 |
| From: | Minners W NRC OFFICE OF NUCLEAR REGULATORY RESEARCH (RES) |
| To: | Fraley R Advisory Committee on Reactor Safeguards |
| Shared Package | |
| ML20035E070 | List: |
| References | |
| RTR-REGGD-01.101, RTR-REGGD-1.101 ACRS-2834, NUDOCS 9304140244 | |
| Download: ML20035E077 (2) | |
Text
'.- l.*
' 52 MEMORANDUM FOR:
Raymond F.
Fraley, Executive Director Advisory Committee on Reactor Safeguards FROM:
Warren Minners, Director Division of Safety Issue Resolution Office of Nuclear Regulatory Research
SUBJECT:
FINAL REVISION 3 TO REGULATORY GUIDE 1.101, " EMERGENCY PLANNING AND PREPAREDNESS FOR NUCLEAR REACTORS" Enclosed for review by the ACRS is the subject document which the NRC staff is planning to publish.
The fundamental change to this regulatory guide is the endorsement of the attached NUMARC document relating to the development of Emergency Action Levels.
The staff worked extensively with NUMARC in the development of this document.
Additionally, as a result of public comments the staff has added
,,g a clarification sentence to the regulatory position which is highlighted in the right margin.
The proposed version of this regulatory guide was forwarded to i
the ACRS for review on November 1991 but the ACRS deferred its review until after the public comment period.
Ten (10) comment l'etters were received and eva)uated as a result of the public comm2nt period.
Four of these letters were from State governmental entities while the remaining six letters came from utilities ' cur companies working with utilities.
Almost all commentors felt that the use of the NUMARC methodology for the development of an Emergency Action Level scheme was an improvement over the current system and appears to give better results in decision making leading to an emergency classification declaration for offsite authorities.
i Nonetheless, one State government agency stated that:
"With the reduced number of potential UEs (Unusual Events),
there will be an increase in the number of 1-hour and 4-hour non-emergency reports.
Many States do not receive these reports and the UE may be the only reliable mechanism of keeping them aware of abnormal occurrences and unusual conditions.
Implementation of the NUMARC methodology will result in extra man-hours devoted to analysis of non-emergency events and escalation-pathways to the UE level.
Increased scrutiny of non-emergency reports will also affect 9304140244 921006 PDR ACRS M4 PDR
i JUL 7 1992 i communications with the State police and other State response organizations."
The staff feels that the following comment by another State adequately addresses this concern:
i "NUMARC nethology would result in a reduction in the number of unusual events reported to State and local governments.
State and local governments would only receive notification of unusual events if the event were a precursor to a more significant event that could potentially affect the safety of the public.
This would significantly enhance the State and local governments' programs to respond-to events by i
eliminating those events that do not have the potential to affect the safety of the public."
The information contained in the package is ore-decisional and should not be made publicly available or placed in the Public
{
Document Room.
For further information contact Mike Jamgochian, RES 492-3918.
sw-
/
Warren Minners, Director Division of Safety Issue Resolution Office of Nuclear Regulatory Research l
l
Enclosures:
1.
Regulatory Guide 1.101 Revision 3 2.
NUMARC NESP-007 February 1991 3.
Regulatory Analysis j
l OFFICE: DSIR/SAIB*
DSIR/SATB*: DSIR/SA DD/DSIR D/DSIR Y
NAME
- K7mmaochian: LSoffer
- CAder
- TKine
- WMinners:
DATE
- 6/9/92
- 6/10/92
- 6/
/92
- 6/
/92: 6/
/92 :
OFFICE: NRM C D NAME
- FGY11hable: EJohdan: STra dv :
DATE
- 6/G /M
- 6/ W/92: 6/15/92:
- see previous concurrence I